Ratchet-operating device



1,630,403 y 1927' "H. A.'MORRIS RATCHET OPERATING DEVICE Filed Aug. 13, 1925 WITNESSES ATTORNEY Patented May 31,1927. 1

Ire:

T E S TE I iARRY A LiroN IvronRrs, QF MARIE'I A, oH-Io.

-@RATGHETQE'EBATINGQDEVICE.

. Thisiinvention relates a ratchet ope rat ing device particularly adapted for Lu se in turning screws and the like.

- The object of the invention to provide a simple inexpensive.fand practlcal device I of this nature whichniaybe used withespecial, advantage Qfor effecting adjustments, w hich are dificult of ac,cess,, or which; by

' reason ofi-high te nperatureg ori otherT c on 'ditions, can ,notordinarily be handled di'-.

.rect'ly. Such conditionsprevail, tor-example, in connection W1tl1 the screw used in arc projector lamps fo r clamping. the-carbon in the holder.-.

The detailedgcconstruction of :thef'invention and'the advantages thereof will be more specifically described With reference to theaccornpanyn g draw ng- 1n which; i Y F gure; l is a. perspect ve view 'off'a cari connected therewith. e

, thereof.

taken at right angles to the plane of, ThQ lllYBHlZlQIl ..1s shown in connect onbon holder with the [I invention operatively Figure ,2, is a side elevation of the invent Figure is a centralilongitudinal section fFigu re 4 is a central longitudinal section With a construction gwhich. comprises {a bracket formed With a seat'fif' for receivf inga splitsleeve 7 constituting a holderv for I the carbon" 8.- Theholder] isadapted ,to'

is pivotally connectedftofone end of bifurcated b-ell crank 10 interniediately ful- .cruinedon; the bracket 5 and-'sftraddling the same, "A screw :11 is connected "with the otheiven'd of-the bell crank lO and is rotat able in one direction to draw the yoke9 into clamping relationflto the holder and rotatable in the other" direction to release the same.

In lamps-of this kind, the adjusting screiv' is difficult of access, and the fingers of the operator often become burned When manipulating the same. In'carrying outthe' pzes ent invention, theouter'e-nd of thescrew 11 is formed with a squared portion 12 'on 1 Wheel is mountedon the squared portion 12 'offthe screw, being provided W1tl1 athe inside of whichis a bearlng surfac'e 13 of comparatively large diameter; and on the outer side ofyvhich is a. bearing-surface 14 of comparatively small 'diameteng A ratchet slots 24. formed in the lever;

1s normally held, outf'jote igtheinotchesif byaniekpaiisile co ledspring Whichfsui roundsi theft'ubular lever 16.he-

- formed at: the

flatedqfli ifl case the Inoist' .o-rf oily. i

placed on' th'e screwv'flifbetweengthe-afin 1T v and'theQadjacent-"endof the bell lcrank 10 to holdthe screw in the position to SK illicit I squared opening for receiving the-same," A

tubular lever 16is for ned atoneiend-fwith I spaced arms17and 18 adapted:toistra'ddle "the, ratchet \vheel 15,1and' to" be j ournaled on the bearing surfaces 13' andl respectively.

' A screw 19, with a fiat head,- isthreadecl into theouten elfid of the screwfllIto retain"the "ratchet Wheel andlever'th'eifeonifl l ,Theratchet Wheel .15 is; p iovid e di'with notches 2Q'adaptedto be selectively "engaged by a'pin 21.;projecting -v ironithe inner end of a bolt" 22, :ivhich is ."slidably mounted in the tubular lever 15,1and-limitedinits' 'nioveinen't -b'y' a cross head eagujded 'injbaybnet ment. with tWee lIthe cross head 23am t1 1ej'sh'ou1der126 and 17.1 The belt grear-kenids of the arms a'aaidiphe le e 16 may Jb' nipulated by ineansfofanjextension orhang end ,a cylindrical socket 28, adapted L to 12} celve the jendfof the leyer, and fpieferably reinforced by a ferrule [Ihe'jsoc'ket 28 is jfforrned With Y a; reducedfleirtension' 30 .7

pin 31; which is engageable in. a channel 32 ;j

itiis adjusted. 1

In the. operation of the invention, after vthe handle has been placed upon; the end of' 101111861 111 the end. ofjthe bolt that i the bolt maybe rotatediwithin the. tubular thelever 16, a. slight inward pressurethere,

, on will overcome the tension of-the spring 251 and cause the-finger 21 to'engage oneof the notches 20, whereupon the screw 'llirnaybe rotatedin the direction desired. By releas 'vv cross"*head 23 may be engaged with the inner ends of the bayonet slots; 24, sothat-the ilever; Will be looked to the ratchet wheel. i

The .useof this ratchet device in the man o ner describedsaves a great deal of time "ineohusting or replacingables the operator .to effect the adjlistinent Without" burning his fingers. N'Vhile I have shown anchdes" '1'ibed the 'i'nventioh ae tieedin connection 1 With a1 'foafbon holder; for -'a'r'o- -1am ;,13is' ObVldUS that the sa-In'e may be.

used to "advantage in aibenohvise, orfi'nioon- "Fnje'ction fwith 'any'fserew threadedelement which 'is difliotxltof access; andjfivhiofh it "oonvenientflto operate byl neans of a lev moving back -and "torit'hfthrongh mi-15m.

I It is alsoitbfbe'undretood thatthe invention ie not liin'ited "toth'el prefoise constiaction' and arrangement *of elements] herein shown and des'otibed, b'u't- 'fineliidesi various moth,-

"float-ions w hich ffa ll flvvithin ft-he scope, offthe appended laims,

What- 'i'sela imed' is:

1. Theeembmaedn ivi'th' a rbtatableehank and a Wheel 'ihou'nted thereon and miovi'd'ed the vvhee'l when moved with eripherfl g'nothe ef a lever jour aled angs-em shank; a "bolt" Steamsupported by the lever and en age-able 'with'the 'notehes in inwardly, a "spring normally holding the bolt in its oiiterrnost position, an extensio handle having a: socket 7 'fslidablelongitudinally 'onthe otit'er end of ,handl'e.

having*a poftioni W hic'h is dnon joinoiilar in orose seotionfand. a Wheel mounted on said nonLciroular portion a nd qoirovidedavithp'ethe lev y gageable'vvith'the otitei end of-thebolt'vvhen the handle "s vmoved?i1 1'vvard1 v and operable when eoinoved to niove the bolt in oiipoeito the eprin'g' end into, engagement With one'lof the notches, .vv'her'eby the. wheel and shank; may; be .7 rotated by" swiiig'in {the 'lhe iooinbinationjvvi'th afotatab1ef s'1iank ripheral' notches of a tubiflar "lever having a bifu-I oated s ttfaddling' the wheelfand hjourhaledion' said shank, a -jb'olt slidable ih the carbon, and; en-

titre;

eaid lever and iojecting outwardty zbeyond "the 'end thereot V the bolt in retracted position and out of en- 'o-gagementi-th the Wheel, an extension hana spring norinally holding' dle having a socket s iidable onthe outer end of the lever-,l'eaid' handle being operable by endwise inward movement toengage the bottoni-of the eoeketeviththe outer endof the bolt and move the latter inwardly'into'en- 'gag'eineii't with one (if the notches,- whereby the'shank maybe r'otated by'e ingin gthe V handle; it

' efl hecombimtioe with-a'i'otat ableeerewi "havingfa-shank port onfwhioh.-is nomoii-euiar o 1n cr sssectxo ,andawheel mo'untea on sand noncii'ctilaf pottio'n and-jpiohided "Wit/11513 6 'iiphe'ral notches, aj tLibu1ar--levenhaving aibayonet slot' thetei'nfand 'having afbifur- *outedend-straddling the Wheel andkjoufnaled onlSa-idsha nk, a bolt elidable' insaid lever] and projecting outwardly' behin'd the end of jthe leverya Pinon saidfboltengagingf said bayonet slot and cooperating therewithto,

"look "the bolt in engagement with :a;se1et' d '5 5 one of eaidnotches -a tspi ing':nofmally holdg" ;-i i -n' "thefbdlt in retracted -'positioh end-out of engagement with the notches when iit' is not 1' ;s0 flocked, "said "bolt having transverse 7 channel in itsonter end-,flan extension handle having a socket slidable {on the outer end i of the lever; saicbsooketfha'vinga redu o'edinnen portion receiving the outer endo fisaid-b'olt,

V e eummy, ama olainiit he;foregoing w y n i h v ih ee fie e' a s r" 

